" Latest Sound Tech - The Rail is Skullcandy's latest premium earbuds featuring our best driver yet with deep bass and a huge dynamic range. Plus, Personal Sound lets you tune the sound to your unique hearing through the Skull-iQ App. 42 Hours of Power - With Rail, you can experience longer-lasting listening sessions without worry. Enjoy wireless freedom with 33 hours of power in the case and 9 hours in the earbuds. Skull-iQ integration allowing you to customize your sound and control your earbuds. With the app, you can adjust the EQ settings, track battery life, and activate Tile, which helps you locate your lost earbuds. Multipoint Pairing lets you connect your earbuds to two devices simultaneously — Rail will switch between devices seamlessly without the need to re-pair. Buy with Confidence - 1 year CA warranty included."